Property, Plant and Equipment (Details) (USD $) In Thousands, unless otherwise specified	Dec. 29, 2012	Dec. 31, 2011
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 780,128	$ 678,622
Accumulated depreciation	(326,201)	(278,400)
Property, plant and equipment, net	453,927	400,222
Land [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	49,619	46,386
Buildings and improvements [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	129,243	117,505
Machinery and equipment [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	414,535	372,988
Vehicles [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	97,198	90,651
Aircraft [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	18,465	11,650
Construction in Progress [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 71,068	$ 39,442

The cumulative amount of depreciation, depletion and amortization (related to property, plant and equipment, but not including land) that has been recognized in the income statement.

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Gross amount of long-lived physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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- Definition

Amount, net of accumulated depreciation, depletion and amortization, of long-lived physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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